I have added the following line to /etc/ssh/ssh_config
And restarted my sshd with
sudo service sshd restart sudo service ssh restart
No output from either, dont know if it restarted or not. Tryed restarting with this too:
sudo /etc/init.d/ssh restart
But still when I connect via SSH it prompts for credentials and lets me log in. I'm not doing anything differently from the 4 versions of Ubuntu previously which I have done this for - any ideas why Ubuntu 15.04 no longer respects the "PasswordAuthentication no" line?